Finding the Fourth Proportional to 87,750.46, 121,095.18 and 47,464.18
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Solution
The fourth proportional to 87,750.46, 121,095.18 and 47,464.18 is: 65,500.32
Step by Step Solution
- Step 1: Write the proportion equation
87,750.46 : 121,095.18 = 47,464.18 : x - Step 2: Convert to fraction form
87,750.46/121,095.18 = 47,464.18/x - Step 3: Cross multiply
87,750.46x = 121,095.18 × 47,464.18 - Step 4: Simplify right side
87,750.46x = 5,747,683,420.65 - Step 5: Solve for x
x = 5,747,683,420.65/87,750.46 - Step 6: Final answer
x = 65,500.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.